US5030109A - Area array connector for substrates - Google Patents

Area array connector for substrates Download PDF

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Publication number
US5030109A
US5030109A US07/573,427 US57342790A US5030109A US 5030109 A US5030109 A US 5030109A US 57342790 A US57342790 A US 57342790A US 5030109 A US5030109 A US 5030109A
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US
United States
Prior art keywords
substrates
connector
openings
plate
circuit pads
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Expired - Fee Related
Application number
US07/573,427
Inventor
Ronald A. Dery
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AMP Inc
Original Assignee
AMP Inc
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Filing date
Publication date
Application filed by AMP Inc filed Critical AMP Inc
Priority to US07/573,427 priority Critical patent/US5030109A/en
Assigned to AMP INCORPORATED reassignment AMP INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DERY, RONALD A.
Application granted granted Critical
Publication of US5030109A publication Critical patent/US5030109A/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCBs], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70Coupling devices
    • H01R12/71Coupling devices for rigid printing circuits or like structures
    • H01R12/712Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/714Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCBs], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50Fixed connections
    • H01R12/51Fixed connections for rigid printed circuits or like structures
    • H01R12/52Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/22Contacts for co-operating by abutting
    • H01R13/24Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/325Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/36Assembling printed circuits with other printed circuits
    • H05K3/368Assembling printed circuits with other printed circuits parallel to each other

Abstract

An area array connector (10) for electrically interconnecting circuit pads (18,20) on spaced apart, substrates (22,24) is disclosed. The connector (10) includes a carrier plate (12) having canted coil spring contacts (16) positioned in openings (14) for electrically interconnecting corresponding circuit pads (18,20) on the respective substrates (22,24) between which the connector (10) is placed.

Description

FIELD OF THE INVENTION

This invention relates to stacking connectors for electrically interconnecting substrates wherein the connector is positioned between the substrates.

BACKGROUND OF THE INVENTION

Electrical connectors for electrically interconnecting two substrates have been known as least as early as July, 1970 as exemplified in U.S. Pat. No. 3,638,163 to Loosme. Patentee Loosme disclosed therein a cylindrical, non-conductive body having a plurality of spaced apart conductive contacts wrapped therearound for being placed between parallel substrates having conductive strips thereon. The strips then were electrically interconnected through the contacts

Subsequent to Loosme, Y. Kotaka disclosed in U.S. Pat. No. 3,795,884 a connector comprising an insulating block having coil springs encapsulated therein. Each coil, electrically isolated from adjacent coils by an axial cut in one surface of the block, extended outwardly from diametric surfaces of the block to engage conductors on parallel printed circuit boards.

Thereafter, on Oct. 12, 1976, W. R. Evans issued U.S. Pat. No. 3,985,413 disclosing a connector comprising a generally cylindrical elastomeric body having a thin non-yielding flexible circuit wrapped therearound. Upon placing the connector between two parallel substrates and being compressed, corresponding conductors on the substrates will be electrically connected by the conductors on the flexible circuit

In 1987, a P. J. Balsells issued U.S. Pat. No. 4,655,462 disclosing a coil spring with each coil being disposed at a preselected acute angle with the centerline of the spring. This type of spring, referred to as a "canted" coil spring, exerts a constant force in a loading direction normal to the centerline over a substantial range of deflection. Capitalizing on this feature, it is now proposed to use these types of springs as the electrical paths through which corresponding circuit pads on the respective substrates are connected.

SUMMARY OF THE INVENTION

According to the invention, an array connector is provided for electrically interconnecting parallel substrates. The connector in one form includes a carrier plate having spaced openings therethrough with coil spring contacts retained in the openings. The spring contacts electrically engage corresponding circuit pads on the respective parallel substrates to provide the electrical interconnection therebetween.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a connector constructed in accordance with the embodiment of the present invention and parallel substrates to be electrically interconnected thereby; and

FIG. 2 is a side view showing a coil spring contact in an opening in the carrier plate of the connector and corresponding circuit pads on the respective substrates to be electrically interconnected thereby.

DESCRIPTION OF THE INVENTION

With reference to the drawings connector 10 of the present invention includes carrier plate 12 having a plurality of openings 14 therethrough and canted coil spring contacts 16 positioned in openings 14.

Plate 12 may be of any suitable material but if formed from a conductive material; e.g., steel, it would have to be coated with an insulative material; e.g., a plastic such as tetrafluoroethylene sold by the Du Pont Company under its trademark "TEFLON".

Openings 14 are shown as being rectangular but could be square; i.e., the shape and size is dependent on the shape and size of circuit pads 18,20 on respective substrates 22, 24.

Canted coil spring contacts 16 are cut from length of canted coils springs such as are available from Bal Seal Engineering Co. of Santa Ana, Calif. Preferably the spring contacts are made from electrically conductive, spring-like materials such as beryllium copper and plated on the portion of individual coils 26 with gold or other noble metals.

Free ends 28 of spring contacts 16 are preferably cut to lie conformably against end walls 30 of openings 14.

Spring contacts 16 may be retained in openings 14 in any one of several ways; e.g., heat staking if plate 12 is made of a plastics material

In use, connector 10 is placed between substrates 22,24 with spring contacts 16 in registration with corresponding circuit pads 18,20. The two substrates 22,24 are then secured together; e.g., by bolts (not shown) so that a compressive force is applied to the spring contacts 16. As this occurs, contacts 16 will move in the direction of the cant and by so doing, wipe the respective circuit pads 18,20.

Connector 10 is a high density connector with spring contacts 16 engaging circuit pads 18,20 on a typical center line spacing of 0.050 inches (1.27 mm). As will be appreciated by those skilled in the art, a substantial force is required to make the connection between substrates 22,24 because of the density. For this reason, canted coil spring contacts 16 are ideal for the reason that the force in the loading direction is constant over a substantial range of deflection; i.e., it does not rapidly increase as do ordinary coil springs.

Of the several advantages offered by connector 10 of the present invention, the aforementioned wiping action is very significant. We are unaware of any other high density electrical connector of the stacking type which offers this important feature. Other advantages include the redundant paths provided by the individual coils 26, the short electrical paths; i.e., each half of each coil 26 is a path and further the fact that each coil 26, because of its special relation to circuit pads 18,20, provide a canted compound curvature surface to bear against respective pads 18,20.

As will be readily apparent to those skilled in the art, modifications may be incorporated into the basic concept of the present invention. For example, coil spring contacts 16 may be formed from a pair of coil springs with one inside the other. Whereas the preferred orientation of coil spring contacts 16 are such that the major axis is generally normal relative to substrates 22, 24, one could orientate them with the minor axis normal to substrates 22,24.

Further carrier plate 12 may be made of a flexible material which will conform to undulate surface on substrates 22, 24 or which may be folded to engage nonparallel surfaces such as 3-D molded circuits.

As can be discussed from the above, an electrical connector for electrically interconnecting parallel substrates has been disclosed. The connector includes a plurality of openings containing conductive canted coil spring contacts for electrically engaging corresponding circuit pads on the respective substrates.

Claims (7)

We claim:
1. An area array connector for electrically interconnecting circuit pads on a pair of spaced apart substrates, comprising:
a carrier plate having a plurality of openings therethrough, said openings being arranged in a pattern corresponding to the pattern of circuit pads on a pair of substrates, said plate adapted to be positioned between the substrates; and
a plurality of contacts formed from canted coil springs, said contacts disposed in said openings in said plate to electrically engage corresponding circuit pads on respective substrates, said contacts being provided by individual coils of said springs and said coils provide a canted compound curvature surface to bear against the respective pads.
2. The connector of claim 1 wherein said contacts move across and wipe the corresponding circuit pads as the parallel substrates are pressed against opposite surfaces of said plate.
3. The connector of claim 1 wherein a plurality of said individual coils engage a single circuit pad.
4. The connector of claim 1 wherein said carrier plate is flexible to conform to non-parallel substrates.
5. The connector of claim 1 wherein the canted coil spring contacts are made of an electrically conductive spring-like material and plated with a noble metal.
6. The connector of claim 5 wherein the material is beryllium copper.
7. An area array connector for electrically interconnecting circuit pads on a pair of spaced apart substrates, comprising:
a carrier plate having a plurality of openings therethrough, said openings being arranged in a pattern corresponding to the pattern of circuit pads on a pair of substrates, said plate adapted to be positioned between the substrates; and
a plurality of contactors formed from canted coil springs and disposed in said openings in said plate with the major axis of individual coils being generally orientated perpendicular to the spaced apart substrates.
US07/573,427 1990-08-24 1990-08-24 Area array connector for substrates Expired - Fee Related US5030109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/573,427 US5030109A (en) 1990-08-24 1990-08-24 Area array connector for substrates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/573,427 US5030109A (en) 1990-08-24 1990-08-24 Area array connector for substrates

Publications (1)

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US5030109A true US5030109A (en) 1991-07-09

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US07/573,427 Expired - Fee Related US5030109A (en) 1990-08-24 1990-08-24 Area array connector for substrates

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Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5184962A (en) * 1991-12-05 1993-02-09 Burndy Corporation Electrical spring contact
US5214563A (en) * 1991-12-31 1993-05-25 Compaq Computer Corporation Thermally reactive lead assembly and method for making same
US5230632A (en) * 1991-12-19 1993-07-27 International Business Machines Corporation Dual element electrical contact and connector assembly utilizing same
US5232372A (en) * 1992-05-11 1993-08-03 Amp Incorporated Land grid array connector and method of manufacture
EP0558855A2 (en) * 1992-03-02 1993-09-08 AT&T Corp. Circuit board stack with novel cross-over cells
US5273438A (en) * 1992-08-19 1993-12-28 The Whitaker Corporation Canted coil spring array and method for producing the same
US5297967A (en) * 1992-10-13 1994-03-29 International Business Machines Corporation Electrical interconnector with helical contacting portion and assembly using same
US5476398A (en) * 1993-09-21 1995-12-19 Matra Marconi Space France Pluggable electrical connection device
US5504940A (en) * 1992-11-13 1996-04-02 Motorola, Inc. Shock isolation system having integral electrical interconnects
US5540593A (en) * 1993-06-30 1996-07-30 Yamaichi Electronics Co., Ltd. Coil type contactor and connector using the same
WO2000074110A2 (en) * 1999-05-27 2000-12-07 Nanonexus, Inc. Integrated circuit wafer probe card assembly
US6294731B1 (en) 1999-03-16 2001-09-25 Performance Interconnect, Inc. Apparatus for multichip packaging
US6434817B1 (en) 1999-12-03 2002-08-20 Delphi Technologies, Inc. Method for joining an integrated circuit
US6439894B1 (en) 2001-01-31 2002-08-27 High Connection Density, Inc. Contact assembly for land grid array interposer or electrical connector
EP1315244A1 (en) * 1999-10-20 2003-05-28 Fci Low profile high density sockets and related method of manufacturing
US6666690B2 (en) * 2000-03-24 2003-12-23 Yokowo Co., Ltd. Coil spring contact connector
US20040127074A1 (en) * 1998-07-13 2004-07-01 Formfactor, Inc. Interconnect assemblies and methods
US20040192080A1 (en) * 2003-03-24 2004-09-30 Che-Yu Li Electrical contact
US6846184B2 (en) 2003-01-24 2005-01-25 High Connection Density Inc. Low inductance electrical contacts and LGA connector system
US20050048807A1 (en) * 2003-03-24 2005-03-03 Che-Yu Li Electrical contact and connector and method of manufacture
US20050048806A1 (en) * 2003-03-24 2005-03-03 Che-Yu Li Electrical contact and connector and method of manufacture
US6877992B2 (en) 2002-11-01 2005-04-12 Airborn, Inc. Area array connector having stacked contacts for improved current carrying capacity
EP1704622A2 (en) * 2004-01-16 2006-09-27 Amphenol Corporation Interposer assembly
US20070049063A1 (en) * 2005-08-31 2007-03-01 Yokowo Co., Ltd. Electrical connector provided with coiled spring contact
US20070105406A1 (en) * 2005-11-08 2007-05-10 Che-Yu Li Electrical contact and connector system
US20080036071A1 (en) * 2006-08-10 2008-02-14 Che-Yu Li & Company, Llc High Density Electronic Packages
US7384271B1 (en) 2007-06-14 2008-06-10 Itt Manufacturing Enterprises, Inc. Compressive cloverleaf contactor
US20080293307A1 (en) * 2007-05-24 2008-11-27 Tribotek, Inc. Spring beam wafer connector
US7527502B2 (en) 2005-11-01 2009-05-05 Che-Yu Li Electrical contact assembly and connector system
US20090197482A1 (en) * 2008-02-04 2009-08-06 Tribotek, Inc. Stamped beam connector
US20090197481A1 (en) * 2008-01-31 2009-08-06 Tribotek, Inc. Wound coil compression connector
US7704107B1 (en) * 2006-05-09 2010-04-27 Randall Mark Desmond Conductive coil connector for reconfigurable electrical circuit element
US7794235B2 (en) 2008-01-31 2010-09-14 Methode Electronics, Inc. Continuous wireform connector
CN102013586B (en) 2009-09-04 2013-03-13 富士康(昆山)电脑接插件有限公司 Conducting element and electric connector using same
US8758026B2 (en) 2012-02-06 2014-06-24 Touchsensor Technologies, Llc System for connecting a first substrate to a second substrate
US20140378008A1 (en) * 2013-06-25 2014-12-25 Bal Seal Engineering, Inc. Electrical contacts with electrically conductive springs
US20160294080A1 (en) * 2015-03-31 2016-10-06 Sensata Technologies, Inc. Connectivity in an assembly
US20170373425A1 (en) * 2016-06-24 2017-12-28 Bal Seal Engineering, Inc. Spring contacts and related methods

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US4838815A (en) * 1986-09-26 1989-06-13 Hosiden Electronics Co., Ltd. Connector assembly

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US2153177A (en) * 1936-04-22 1939-04-04 Ibm Brush frame construction
US3513434A (en) * 1965-10-23 1970-05-19 Lawrence Zielke Electrical terminal connector block
US4810213A (en) * 1975-01-30 1989-03-07 Square D Company Low resistance electrical connecting assembly
US4029375A (en) * 1976-06-14 1977-06-14 Electronic Engineering Company Of California Miniature electrical connector
US4838815A (en) * 1986-09-26 1989-06-13 Hosiden Electronics Co., Ltd. Connector assembly
US4820376A (en) * 1987-11-05 1989-04-11 American Telephone And Telegraph Company At&T Bell Laboratories Fabrication of CPI layers

Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5184962A (en) * 1991-12-05 1993-02-09 Burndy Corporation Electrical spring contact
US5230632A (en) * 1991-12-19 1993-07-27 International Business Machines Corporation Dual element electrical contact and connector assembly utilizing same
US5214563A (en) * 1991-12-31 1993-05-25 Compaq Computer Corporation Thermally reactive lead assembly and method for making same
EP0558855A3 (en) * 1992-03-02 1996-05-01 American Telephone & Telegraph Circuit board stack with novel cross-over cells
EP0558855A2 (en) * 1992-03-02 1993-09-08 AT&T Corp. Circuit board stack with novel cross-over cells
US5232372A (en) * 1992-05-11 1993-08-03 Amp Incorporated Land grid array connector and method of manufacture
US5273438A (en) * 1992-08-19 1993-12-28 The Whitaker Corporation Canted coil spring array and method for producing the same
US5297967A (en) * 1992-10-13 1994-03-29 International Business Machines Corporation Electrical interconnector with helical contacting portion and assembly using same
US5504940A (en) * 1992-11-13 1996-04-02 Motorola, Inc. Shock isolation system having integral electrical interconnects
US5540593A (en) * 1993-06-30 1996-07-30 Yamaichi Electronics Co., Ltd. Coil type contactor and connector using the same
US5476398A (en) * 1993-09-21 1995-12-19 Matra Marconi Space France Pluggable electrical connection device
US20040127074A1 (en) * 1998-07-13 2004-07-01 Formfactor, Inc. Interconnect assemblies and methods
US6948941B2 (en) * 1998-07-13 2005-09-27 Formfactor, Inc. Interconnect assemblies and methods
US20060024988A1 (en) * 1998-07-13 2006-02-02 Formfactor, Inc. Interconnect assemblies and methods
US7169646B2 (en) 1998-07-13 2007-01-30 Formfactor, Inc. Interconnect assemblies and methods
US7618281B2 (en) 1998-07-13 2009-11-17 Formfactor, Inc. Interconnect assemblies and methods
US20070123082A1 (en) * 1998-07-13 2007-05-31 Formfactor, Inc. Interconnect Assemblies And Methods
US6294731B1 (en) 1999-03-16 2001-09-25 Performance Interconnect, Inc. Apparatus for multichip packaging
WO2000074110A2 (en) * 1999-05-27 2000-12-07 Nanonexus, Inc. Integrated circuit wafer probe card assembly
WO2000074110A3 (en) * 1999-05-27 2001-09-27 Nanonexus Inc Integrated circuit wafer probe card assembly
EP1315244A1 (en) * 1999-10-20 2003-05-28 Fci Low profile high density sockets and related method of manufacturing
US6434817B1 (en) 1999-12-03 2002-08-20 Delphi Technologies, Inc. Method for joining an integrated circuit
US6666690B2 (en) * 2000-03-24 2003-12-23 Yokowo Co., Ltd. Coil spring contact connector
US6439894B1 (en) 2001-01-31 2002-08-27 High Connection Density, Inc. Contact assembly for land grid array interposer or electrical connector
US6659778B2 (en) 2001-01-31 2003-12-09 High Connection Density, Inc Contact assembly for land grid array interposer or electrical connector
US6877992B2 (en) 2002-11-01 2005-04-12 Airborn, Inc. Area array connector having stacked contacts for improved current carrying capacity
US6846184B2 (en) 2003-01-24 2005-01-25 High Connection Density Inc. Low inductance electrical contacts and LGA connector system
US20040192080A1 (en) * 2003-03-24 2004-09-30 Che-Yu Li Electrical contact
US20050048806A1 (en) * 2003-03-24 2005-03-03 Che-Yu Li Electrical contact and connector and method of manufacture
US7014479B2 (en) 2003-03-24 2006-03-21 Che-Yu Li Electrical contact and connector and method of manufacture
US7029288B2 (en) 2003-03-24 2006-04-18 Che-Yu Li Electrical contact and connector and method of manufacture
US20060094269A1 (en) * 2003-03-24 2006-05-04 Che-Yu Li Electrical contact and connector and method of manufacture
US20050048807A1 (en) * 2003-03-24 2005-03-03 Che-Yu Li Electrical contact and connector and method of manufacture
US20060141815A1 (en) * 2003-03-24 2006-06-29 Che-Yu Li Interconnection device and system
US20050164534A1 (en) * 2003-03-24 2005-07-28 Che-Yu Li Interconnection device and system
US7029289B2 (en) 2003-03-24 2006-04-18 Che-Yu Li & Company Llc Interconnection device and system
US7040902B2 (en) 2003-03-24 2006-05-09 Che-Yu Li & Company, Llc Electrical contact
EP1704622A4 (en) * 2004-01-16 2008-02-20 Amphenol Corp Interposer assembly
EP1704622A2 (en) * 2004-01-16 2006-09-27 Amphenol Corporation Interposer assembly
EP1760835A3 (en) * 2005-08-31 2007-03-14 YOKOWO Co., Ltd Electrical connector provided with coiled spring contact
US20070049063A1 (en) * 2005-08-31 2007-03-01 Yokowo Co., Ltd. Electrical connector provided with coiled spring contact
US7255572B2 (en) * 2005-08-31 2007-08-14 Yokowo Co., Ltd. Electrical connector provided with coiled spring contact
EP1760835A2 (en) * 2005-08-31 2007-03-07 YOKOWO Co., Ltd Electrical connector provided with coiled spring contact
US7527502B2 (en) 2005-11-01 2009-05-05 Che-Yu Li Electrical contact assembly and connector system
US7293995B2 (en) 2005-11-08 2007-11-13 Che-Yu Li & Company, Llc Electrical contact and connector system
US20070105406A1 (en) * 2005-11-08 2007-05-10 Che-Yu Li Electrical contact and connector system
US7704107B1 (en) * 2006-05-09 2010-04-27 Randall Mark Desmond Conductive coil connector for reconfigurable electrical circuit element
US20080036071A1 (en) * 2006-08-10 2008-02-14 Che-Yu Li & Company, Llc High Density Electronic Packages
US7358603B2 (en) 2006-08-10 2008-04-15 Che-Yu Li & Company, Llc High density electronic packages
US7833019B2 (en) 2007-05-24 2010-11-16 Methode Electronics, Inc. Spring beam wafer connector
US20080293307A1 (en) * 2007-05-24 2008-11-27 Tribotek, Inc. Spring beam wafer connector
US7384271B1 (en) 2007-06-14 2008-06-10 Itt Manufacturing Enterprises, Inc. Compressive cloverleaf contactor
US20090197481A1 (en) * 2008-01-31 2009-08-06 Tribotek, Inc. Wound coil compression connector
US7794235B2 (en) 2008-01-31 2010-09-14 Methode Electronics, Inc. Continuous wireform connector
US7806699B2 (en) * 2008-01-31 2010-10-05 Methode Electornics, Inc. Wound coil compression connector
US7806737B2 (en) 2008-02-04 2010-10-05 Methode Electronics, Inc. Stamped beam connector
US20090197482A1 (en) * 2008-02-04 2009-08-06 Tribotek, Inc. Stamped beam connector
CN102013586B (en) 2009-09-04 2013-03-13 富士康(昆山)电脑接插件有限公司 Conducting element and electric connector using same
US8758026B2 (en) 2012-02-06 2014-06-24 Touchsensor Technologies, Llc System for connecting a first substrate to a second substrate
US10263368B2 (en) * 2013-06-25 2019-04-16 Bal Seal Engineering, Inc. Electrical contacts with electrically conductive springs
US20140378008A1 (en) * 2013-06-25 2014-12-25 Bal Seal Engineering, Inc. Electrical contacts with electrically conductive springs
US20160294080A1 (en) * 2015-03-31 2016-10-06 Sensata Technologies, Inc. Connectivity in an assembly
US9748678B2 (en) * 2015-03-31 2017-08-29 Sensata Technologies, Inc. Connectivity in an assembly
US20170373425A1 (en) * 2016-06-24 2017-12-28 Bal Seal Engineering, Inc. Spring contacts and related methods
US10181668B2 (en) * 2016-06-24 2019-01-15 Bal Seal Engineering, Inc. Spring contacts and related methods

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